"Unknown/unexpected directive" build failure(s) — clang 9.0.1

PackageVersionSupposed error messageFull log Bug report
fis-gtm 6.3-007-1dm_start.s:18:2: error: unknown directive Log
kexec-tools 1:2.0.20-1purgatory/arch/i386/entry32-16.S:23:2: error: unknown directive Log

2 errors